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EBook Problems Set - Measures of Central Tendency Problems
Problem 1
Suppose that in a certain country, the average yearly income for 75% of the population is below average, what would you use as the measure of center and spread?
- Choose one answer.
- (a) Mean and interquartile range
- (b) Mean and standard deviation
- (c) Median and interquartile range
- (d) Mean and standard deviation
Problem 2
According to a story in the Guardian newspaper in the U.K., the mean wage for a Premiership player in 2001-2002 in the U.K. was 600,000 pounds. Which of the following is most likely true?
- Choose one answer.
- (a) About as many Premiership players make more than 600,000 pounds as make less.
- (b) Most Premiership players make close to 600,000 pounds.
- (c) Most Premiership players make less than 600,000 pounds.
- (d) Most Premiership players make more than 600,000 pounds.
Problem 3
If the observations larger than 40 are deleted in the following histogram, what will happen to the value of the mean?
- Choose one answer.
- (a) It will become larger.
- (b) It will become smaller.
- (c) Need more information to answer this question.
- (d) It will not change.
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